Home / 30,947.16-42,725.70-29,175.96

Finding the Fourth Proportional to 30,947.16, 42,725.70 and 29,175.96

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Solution

The fourth proportional to 30,947.16, 42,725.70 and 29,175.96 is: 40,280.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,947.16 : 42,725.70 = 29,175.96 : x
  2. Step 2: Convert to fraction form
    30,947.16/42,725.70 = 29,175.96/x
  3. Step 3: Cross multiply
    30,947.16x = 42,725.70 × 29,175.96
  4. Step 4: Simplify right side
    30,947.16x = 1,246,563,314.17
  5. Step 5: Solve for x
    x = 1,246,563,314.17/30,947.16
  6. Step 6: Final answer
    x = 40,280.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.